Grade Calculator
Calculate the final exam percent needed to reach a desired overall grade.
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Math & Everyday Calculators
Math and everyday calculators covering percentages, dates, conversions, geometry, statistics, and practical daily number tools.
Electricity Cost Calculator
Estimate electricity cost for a device from watts, daily hours, days, and price per kWh.
Use calculatorBTU Calculator
Estimate BTU capacity needs from the calculator room and load fields.
Use calculatorName Compatibility Calculator
Hash two names into a repeatable entertainment percentage. Not scientific advice.
Use calculatorBasic Calculator
Compute a result from values A and B with add, subtract, multiply, divide, or power.
Use calculatorHeight Converter
Convert a height in centimeters to feet and inches with standard inch based scaling.
Use calculatorCommon Factor Calculator
List all positive common factors shared by two integers, including the GCF.
Use calculatorWeight Converter
Convert between kilograms, pounds, grams, and ounces with standard factors.
Use calculatorURL Encode Decode Calculator
Percent-encode or decode text using encodeURIComponent / decodeURIComponent style rules.
Use calculatorScientific Calculator
Evaluate scientific operations on values A and B, including powers and degree based trigonometry.
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